John Sandford: Shadow Prey (USA 2006)
From the Publisher:
A slumlord in Minneapolis. A New York politician. An Oklahoma judge.
Three strangers with one thing in common: each has been butchered with a Native American ceremonial knife by a killer known as Shadow Love. Lucas Davenport and Officer Lily Rothenburg needn't look far for the killer. He's right behind them.
The #1 New York Times bestselling series. Lucas Davenport goes on a city-to-city search for a bizarre ritualistic killer.
John Sandford: Shadow Prey. Berkley Books, ISBN: 0425208842 (March, 2006), 358 p., $7.99.